Ketchup company Heinz’s hiring of a former Burger King CEO in June has left a bad taste for fast-food competitor McDonald’s.

“As a result of recent management changes at Heinz, we have decided to transition our business to other suppliers at this time,” a spokesperson for McDonald’s said in a statement Saturday, reports the Pittsburgh Post-Gazette.

Heinz ketchup was served mostly in Pittsburgh and Minneapolis McDonald’s markets, so the decision will mostly impact Heinz’s overseas sales.